Transcript for Successful veterinarian finds love again with younger doctor: Part 1

Hey, it’s valley Mcdaniel and it’s March 15, 2017. I’m sitting outside. And I wanted to take time, and tell my story. From the beginning. Try not to judge me. Reporter: It’s been said that only good girls keep diaries. Bad girls don’t have time. Well, 48-year-old Valerie Mcdaniel took time to confide her most private, innermost thoughts in an audio diary she recorded on her iPad. She talks about her daughter. She’s the most precious thing to me. Reporter: Her adventures as a new divorcee. A 48-year-old woman trying to start to date, not a good thing. Reporter: And also in that diary, it sounds as if she’s harboring a bone-chilling secret. I never wanted to hurt anyone. I hate the idea that everybody thinks I’m a monster. Reporter: A monster? That’s not a word her friends would ever use to describe her. Valerie was an amazing human being. She had a light with — within her. I felt honored to have her as my friend. She was so successful and so beautiful and funny and intelligent. Reporter: 2017 started on a high note for Valerie. She is living in river oaks, the Beverly hills of Houston, where her neighbors are the likes of multimillionaire pastor Joel Osteen. God controls the universe. There are definitely high-profile, wealthy individuals who live in river oaks. Reporter: Valerie enjoys the view from the balcony of her spacious two bedroom condo, a perk of her thriving veterinary practice. She just poured her heart and soul into veterinary medicine. Just a really giving, caring individual. Reporter: Dr. Brittany king worked for Valerie. I looked up to her as a mentor and a — you know, an inspiration. I would hope to be like her someday. Reporter: When she wasn’t tending to her furry friends, the affluent animal doctor spent weekends on tiki island near galveston, where she generously hosted friends at her $700,000 beach home. We always karaoked. ??? We could learn to love again ??? It was a lot of fun. We swam. We just enjoyed each other’s company. She would always prepare these amazing dinners for us. Reporter: Now, when you guys had these dinners, there was one thing that was always missing, and that is Valerie’s husband. Uh-huh. Correct. Reporter: What did she tell you about her marriage? She did not feel loved. Her husband was never around. Reporter: Valerie complained to those friends that Mac, her husband and business partner at the pet clinic, was always out…